Spindle lock



May 14, 1946. M. FALK 2,400,403.

SPINDLE'LOCK' Filed Jan. 25, 1944 Ill/Al 41 INVENTOR v Morris FaZ/i ATTORNEY spindlesof door-latches,

the spind1e is;released:-for:"oscillation, I

aforesaid prior patent, manual operation of the},

Patented May 14, 1946 fsrrNnLE poor r Morris Falk, Leom'in'ster, Masse assignor 4 to Indc- "pendent Lock'Company,1,Fitchbu1-g,:Mass;a x, Y

'corporationof Massachusetts; Y I Application m iery'zs, 1944; Serial No. 5 9','593= v1'5 Claims. (omen-350) This'invention relates generally ge leme more. particularly to spind1e,locks.of 'the latch type includinglocking, i'esetting mechanism, and

still. more particularly to locking meansforsplit able member engaging a lockingdisc c'arrie'dfby the spindle for the door latch] Thishlockingj mechanism. of my prior patent includes anfop-I crating. spindle which is manually'operated..-to move the locking memberinto .lockio' engage: ment, or tomovethe same to a posit'io lock operating spindle to thelOckin'g' posJitiOn maintains the latch: operating spindle. against, roe tation by either the inside door-knob. or the out,- side door knob, and likewise requires a. resetting of the lockv operating spindle an dathe turn button controlling the same before oscillationof the inside door knob is possible. r

I have found that longer-life, mam

tenance andservicing may besecured-by placing reliance upon the manipulation of theinside door knob to reset the lockingmechanism -to thepneutralposition and eliminate the need-for attention to, the position ofthe-locking mechanism in order toretract the-latchbolt. I V 1 Accordingly, it is an object'ot my invention to provide a latch bolt operating mechanism including a spindle" lock, and anuoperating mechanism which, in one position-,is manually operable to lock the spindle, butwhich,xupon oscillation of the inside door knob, serves to disengage the spindle locking mechanism; v H;

Still furtherobjects of my invention reside in the provision of locking means for a latch operating spindle including an assemblywhich. may

be readily mounted beneath. the escutcheon or I rose plate, and which includes locking: meansrrfor the latch operating spindle, and resetting mechanism-which'uporr manipulation of the -inside door knob will automatically throw the locking mechanism to a spindle releasing position,.eliminating the need for attention to the orientationor the locking mechanism operating spindle necessary for free oscillation of the latch operatingspindle.

ing mechanism for latch operating spindle, which may be simply and conveniently operated duljingan emergencyshould the occasion require it,"especially in connction with the split type latchjop'erating spindle where independence of v movement between the outside door knob and the insidedoor knob exists.

Still further objects of my invention-reside in theprovision;of 'locking" mechanism which is simple in construction and of economical design.

Toattain these'obj'ects and such further ob-' v j'ects' as may appear herein or be hereinafter pointed out, I make referenceto the accompan'yingfdrawing-forming a part hereof, in which:

' ,here, IrLmy Figure l is aside elevation of my deviceshow door, with*p'ortionsbroken away to 'showdetail's,"

ing thesa'me applied to a Figure 2 is a longitudmalsection taken along t e. i e' fI nism with} the partsshown in locking position, taken in the direction of lines 3--3 of Figure 2.

Figure'4 is a view corresponding to Figure 3 with. the parts shown in'the released position of the locking, mechanism.

I Making reference to the drawing, my invention .is illustrated as, applicable to a door lock, and, as

shown-,a fragmentof the, door In is provided with an edgewise boring I-I into which is disposed a,

latch bolt' casing l2 terminating inthe edge of theidoor in a plate I3, counter-sunk into the edge of the door and 'heldtherein by the screws l4. Through this plate the latch bolt t5 projects under spring action from'within the casing I-2 in a j'manner readily understood. The casing has its-roll back sleeve 16 positioned to be aligned with a transverse boring I] in, the door leading ffromthe front face'to the rear face of the door.

With the latch bolt casing thus positioned, there is then provided a knob spindle lfl'which is projected in keyingengagement through the roll back sleeve L6, having its outer end I9 directed through the outer rose plate 20 'through the axial orifice 2i and thenintothe outer door knob 22 in. fixed engagement with the same bythe set screw 23.- A cross-pin 24 is passed-through the spindle l8 to section and bearing shoulder 26 to receive the inner spindle .section2l in adjustable screwthreaded engagement. The bearing shoulder '26 is adjusted in'its location by the, positionof; the outer knob 22 and the set screw 23 tov locate the Figure 3 i's a plan view of the-locking mecha a neck 33 entering the orifice 3| for rotatable movement. Axially the locking disc is formed with a keying orifice 34 to receive the spindle l8 in keying engagement, and is arranged to oscillate with the oscillating movement of the spindle 18 as it is moved by the outer door knob 22 in itsmovementto operate the rollvback sleeve l6 and;

retract the spring projected latch bolt IS.

The peripheral edge of the locking disc, at its lower edge 35, is formed with a concavely contoured recess 35; The plate 30 i mmediately below the orifice 3| is formed with a bearing orifice 31 rotatably receiving a; locking plate 38 having ashoulder 39 entering the -orifice 31 for rota tional mounting of the locking plate 38. i

The locking plate is formed with a locking edge 43 whose contour corresponds to the recess 36 formed on the locking disc- The center of curva ture of the recess 36 andthe-lockingedge is located in the axial line through the locking plate and the orifice 31 formed in the back plate 30. The locking plate is axially formed with akeying orifice-4i arranged to receive a similarly conarcuate contour. The coupler stud 56 extends in the path of the coupler disc 51 and into a slot 58 between shoulders 59 and 60, which are disposed for distance slightly greater than the opposite edges of the coupler stud 56 previously mentioned. The coupler disc 51 axially is formed with a keying orifice 6|, preferably square, to receive the inner spindle section 21 to one side of the bearing shoulder 26 of the outer spindle l8. The spindle section 21 is rounded adjacent the edge 52, so that the parting line between the spindle sections 21 and 18 adjacent the shoulder 26 do not interfere with each other in the separable. movement of the sections 21 and 18 respectively, while'permitting rotation relatively to each other of the coupler disc 51 and the locking disc 32.

The coupler disc 51 is formed with a shoulder 63 which makes bearing contact in the housing plate 64 in an orifice axially formed therein. The housing plate is formed with spacer flanges 65 which abut the front face of the back plate30 and is locked thereto by tongues 55 passing through slits61. The locking plate 38 is'formed toured locking spindle 42 for rotation therewith,

in a-mannerwhich will appearrnoreclearly as this description proceeds.- g Normally the locking-plate 38 may oscillate clockwise. The limiting movement inthis directionis securedby thetongue 43 which is, struck up from thebackplate and is arranged to be engaged by the side edge 440i the locking plate. Limiting movement clockwiseis effected against spring action, and for this purpose the edge 45 of the locking plate 38 terminates in a knuckle 46 extending from the edge 45 and engaging the loop 41 formed onthe leaf spring 48, which is anchoredby the pins 4 9 and 50 about whichthe loops 5i and 52 respectively aredirected. Upon clockwise rotation-of the locking plate38, the

knuckleli .first engages the camming loop 41, V

displacing the same. The loop 41 then drops into a position behindthe knuckle 46 to eccentrically engage the peripheral edge 53 and resiliently urge the locking plate in the position against the tonge 43, more or less to flip the locking plate into this position. Thus, the camming loop 41, the edge 53 and the knuckle45 cooperate in the nature of a detent.

Counter-clockwise movement of the 3 looking I plate 38 with the locking disc 32,.in the position as shown in Figure 3,v will nest the locking edge 40 with .the'recess 35 to hold the locking disc against rotation, the features of which are more clearly set forth in my Patent 2,234,912 afore-- mentioned. Counter-clockwise movement is limited'by the stop pin'54, which engage the edge 45 of the locking plate 38. Heraagain, in moving the locking plate in a counter-clockwise direction, the knuckle 45 contacts the carnrning loop 41 to engage the advance edge of the knuckle 46 and flip the locking plate into the locking position and in contact with the stop pin 54.

The upper edge 55 of the locking disc carries a coupler stud .55 extending forwardly of the face of the locking disc and is of general annular with a spacer tongue 6 8 t oi,l'r0 ld the locking plate spaced from the housing plate .64 at the lower edge of the assembly.

Theconstructionthus far described may be positioned onthefinner door surface, employing screwsj69 which pass through the' housing plate and the backing plate, and engage the door surface. With the assembly thus far provided, I maythereafter position an escutcheon plate 10, after which the inner door knob 1| is mounted upon a spindle section 21 and adjusted properly to bear the same against the annular bearing 12, after which the set screw-13 is driven home. The escutcheon plate10is' orificed at 14. to receive therethrough the locking spindle 42 which extends into'the boring 15. The locking spindle has mounted thereon the thumhbutton 15 and is held against withdrawal by the crosspin 11. The opposite edge 18 of the locking spindle 42 terminatesadjaceiit theouter face of the door and is formed with a keying slot '19 accessible through the orifice formed in the outer escutcheon or rose plate '20.

By theconstruction'thus far described, a knob spindle lock, embodying substantiallyall the features of my'prior patent aforementioned, is secured'in connection with a split type of knob spindle. It will be observed'that from the construction'de'scribed, oscillation of the outer door knob 22 will effect retraction of the latch bolt 15 through the medium of the spindle I8. Retraction 'of the latch bolt by the inner door knob 1| through the spindlesection 21 will'be efiected by rotation of the coupler disc 51' in engaging the coupler stud 56 through the engagement the stud 56' makes with the slot 58 formed on the periphery of the coupler disc'51. Driving movement fromthe spindle21 is transmitted to the spindle "l8 aftera partial counterclockwise rotation of the inner doorknob spindle 21, until the shoulente -40s dge 83 defined by the -per' iplier'alcut-ouch! -Inf a idoor' lock coniprising a latch operating With the locking spindle 42 in the position as shown in Figure 4, oscillation of the locking spindle Yin a counter-clockwise direction will serve to 'permit entry of the tripping pin in the plane-of the coupler disc, by reasonof thecutout -'84, until the flat surfacet'la of the tripping pin engages the trip-ping finger 82 at itscontacting point'83, I

With the assembly as shown in Figure 3, upon counter-clockwise rotation-of the inner doorknob -H, the coupler disc will first move without engaging the coupler stud 56. This movement, however, causes engagement of the tripping pin Bl by the tripping finger 82 for a' distance to overcome the resistance of the camn iing loop-I 1, to fiip the locking plate to the position shown in Figure '4 and disengage the locking edge 4%! from the recess 36. Continued counter-clockwise movement of the inner door knob then brings 'into engagement the shoulder 60 with the coupler stud-56,'to carry with the-coup'ler discs! the-lock: ing disc"32,-in turn to oscillate the spindle l8 and retract the latch bolt l5.

By the construction shown, it will be apparent that no speciahattention'-=need be given to the manipulation of the turn "button 16 should anyarrangement of the spindle sections 27 and T8 with respect to their operating knobs, actuation of the locking mechanism'may be-quickly efieoted by manipulation of the spindle 4'2 -throughthe orifice 8E1 formed in the outer roseplateZli, using a screw driver or like keying device tocngage the slit 19 formed in the edgeof the spindle 42.

leasing means for the locking mechanism for the latch operating spindle, assiiringl'onger life and simplifying maintenance and servicing of this type of construction. V d I,

It will be understood that while I have described and illustrated my invention in its preferred form, in association with the split type spindle latch operating mechanismg that I contemplate my invention as "having utility with an integral latch operatingspindle,'andthat,there;-

fore, my invention contemplates th'e'utilizationof parts of the mechanism illustrated, andjtha't my spindle "nra'de of split sections, one section of which is manipulated by an inner door knob and theother by an'outer'door knob, and having looking mechanism for said outer section comprising "operated by an oscillating spindle employing inner and outer door knobs and having a locking device comprising a, locking disc mounted on said spindle and a rotatable locking plate having intor-engaging peripheral edges, the combination therewith of means, comprising an eccentric finger, actuated by said inner knob to have a lost motion movement within limits independent of latch operation by "said inner knob and to'disengage-said plate and said disc from each other upon oscillation of the inner knob to retract the latch.

4. 1n a-door locking device for a door latch operated by an oscillating spindle employing inner and outer door knobs and having a'locking device comprising alocking'disc -keyed wit-lisaid spindle and formed-with a concavely contoured recess and a rotatable locking plate having an eccentric portion-arranged to enter the recess of said-locking disc to hold said spindle locked in one position of said plate, the combination therewith of means, comprising an eccentric finger,

actuatedby the inner knob to have a lost motion movement within limits independent of latch operation by said inner knob and to disengage said plate and said disc from each other upon oscillation of the inner knob to retract the latch.

-5. In a door locking device for a door latch operated by a secti'onalized spindle including an inner knob for one section of the spindle and an outer knob for the other, section of the spindle,

and having a coupling between said sections -whereby oscillation of the inner spindle section oscillates the outer spindle section to retract the latch, the combinationtherewith of manually j operable rotatable locking means engaging the invention is to be judged by thescopepf the appended claims.

Having thus described my invention and illustrated its use, what I claim as! new and desire to secure by Letters Patent is: I

In a door lock comprising a spindle adapted to pass through a bore in a door manipulated .by inner and'outer door knobs having locking mechanism for said spindle comprisment with said member uponrnovement "o'f siaid inner knob to retract said latch;

latch operatin couplingon said outer spindle section but leaving the inner spindle section free to oscillate, and

means carriedby'the'inner spindle section-engagingthe locking means for the outer spindle sec- *tion to rotatably disengage the locking means upon oscillation. of the inner spindle section.

"6. In a door locking device for a door latch operated bya spindle section operable by an outer door knob and an aligned inner spindle locking disc on said first section keyed With said first spindle section, a coupler disc on said second spindle section, and a lost motion coupler stud connecting said locking disc and coupler'disc,

a rotatable locking plate including manually '0p 'erable "means to engage said locking disc and hold said "first spindle section locked against rota- "tion; said c'oupler disc including means to contact fa-portionfo'rmed on said locking plate to disengage said locking plate upon oscillation of the second spindle section. r

'7. In a door locking device for a door latch operable by a spindle section controlled by an outer door knob, an axially aligned inner door knob spindle section, the combination therewith comprising a locking disc keyed to said first spindle section, a coupler disc keyed to said second spindle section, a coupler stud connecting said discs by lost motion means formed on said discs whereby rotation of the second spindle section through the said connection of said discs rotates the first spindle section, a concavely recessed peripheral portion on said locking disc, a rotatable locking plate including manually rotatable operating means therefor, arranged to engage the recess of said locking disc and hold the first spindle section against rotation, and means connecting said coupler disc and locking plate whereby oscillation of the second spindle section will disengage the locking plate from engagement with the locking disc and oscillate the first spindle section.

8. A locking device for a door latch operable by aligned sectionalized relatively movable outer and inner spindle sections, the combination comprising a backing plate adapted to be mounted beneath a rose plate associated with the inner portion of the door,'a locking disc rotatably mounted on said plate including keying means for said outer spindle section, a coupler disc aligned With said locking disc including a lost motion coupler stud connecting said discs, a rotatable locking plate mounted on said backing plate including means engageable by said coupler disc to disengage the locking plate from the locking disc upon rotation of said coupler disc.

9. A locking device for a door latch operable by aligned sectionalized relatively movable outer and inner spindle sections comprising in combination a backing plate adapted to be mounted beneath a rose plate associated with the inner portion of the door, a locking disc rotatably mounted on said plate including keying means for said outer section, a coupler disc aligned with said locking disc including a lost motion coupler stud connecting said discs, a rotatable locking plate mounted on said backing plate including means engageable by said coupler disc to disengage the locking plate from the locking disc upon rotation of said coupler disc, and means on said locking plate cooperating with spring means on said backing plate to urge said locking plate into either the locking position or disengaging position upon manual rotation of said locking plate.

10. A locking device for a door latch operated by a split spindle having an inner spindle section and an outer spindle section comprising in combination a backing plate adapted to be mounted beneath a rose plate associated with said inner spindle section, a locking disc having means rotatably mounting the same on said backing plate and arranged to be mounted in keying engagement with said outer spindle section, a housing plate and means to space the same from the backing plate, a coupler disc rotatably mounted in said housing plate in axial alignment with said locking disc, a coupler stud on said locking disc disposed in a slot formed in said coupler disc, a locking plate rotatably mounted on said backing plate having a locking edge arranged to engage a concavely formed peripheral recessed portion on said locking disc including a tripping pin lying in the plane of said coupler disc, and a tripping finger formed on said coupler disc whereby oscillation of said coupler disc will disengage said locking disc and locking plate from each other.

lLA locking device for a door latch operated by a split spindle having an inner spindle section and an outer spindle section comprising in combination a backing plate adapted to be mounted beneath a rose plate associated with said inner spindle section, a locking disc having means rotatably mounting the same on said backing plate and arranged to be mounted in keying engagement with said outer spindle section, a housing plate and. means to space the same from the backing plate, a coupler disc rotatably mounted in said housing plate in axial alignment with said locking disc, a coupler stud on said locking disc disposed in a slot formed in said coupler disc, a locking plate rotatably mounted on said backing plate havinga locking edge arranged to engage a concavely-formed peripheral recessed portion on said locking disc including a tripping pin lying in the plane of said coupler disc, and a tripping finger formed on said coupler disc whereby oscillation of said coupler disc will disengage said looking disc and locking plate from each other, and means to limit the rotative movement of said looking plate.

12. A locking device for a door latch operated by a split spindle having an inner spindle section and an outer spindle section comprising in combination a backing plate adapted to be mounted beneath a rose plate associated with said inner spindle section, a locking disc having means rotatably mounting the same on said backing plate and arranged to be mounted in keying engagement with said outer spindle section, a housing plate and means to space the same from the backing plate, a coupler disc rotatably mounted in said housing plate in axial alignment with said locking disc, a coupler stud on said locking disc disposed in a slot formed in said coupler disc, a locking plate rotatably mounted on said backing plate having a locking edge arranged to engage a concavely formed peripheral recessed portion on said locking disc including a tripping pin lying in the plane of said coupler disc, a tripping finger formed on said coupler disc whereby oscillation of said coupler disc will disengage said locking disc and locking plate from each other, means to limit the rotative movement of said locking plate, and resilient means to trip said locking plate in either of the-limiting positions aforementioned upon partial movement of said lOCkillg plate.

13. A locking device for a latch operated by spindle means comprising in combination a backing plate adapted to be mounted beneath a rose plate associated with said spindle means, a locking disc and a coupler disc rotatably mounted in respect of said plate, a peripheral recessed portion on said locking disc, a plate rotatably mounted on said backing plate including an eccentrically formed locking edge arranged to engage said recessed portion of said locking disc in one position and hold said locking disc against rotation.

and including a tripping pin'extended into the plane of said coupler disc, a tripping finger on said coupler disc where upon oscillation of said coupler disc, said locking plate will be rotated to free the locking disc for rotation with said coupler disc.

14. A locking device for a latch operated by spindle means comprising in combination a backing plate adapted to be mounted beneath a rose plate associated. with said spindle means, a locking disc and a coupler disc rotatably mounted in respect of said plate, a peripheral recessed portion on said locking disc, a plate rotatably mounted on said backing plate including an eccentrically formed locking edge arranged to engage said recessed portion of said locking discjin one position and hold said locking disc against rotation,

and including a tripping pin extended into the plane of said coupler disc, a tripping finger on said coupler disc where upon oscillation of said coupler disc, said locking plate will be rotated to free the locking disc for rotation with said coupler disc, said coupler disc and locking disc being connected to each other by a 10st motion connection whereby the locking plate will be moved to the disengaging position upon preliminary oscillation of said coupler disc.

15. A locking device for a latch operated by spindle means comprising in combination a backing plate adapted to be mounted beneath a rose plate associated with said spindle means, a looking disc and a coupler disc rotatably mounted in respect of said plate, a peripheral recessed p01'- coupler disc said locking plate will be rotated to I free the locking disc for rotation with said coupler disc, said coupler disc and locking disc being connected to each other by a lost motion connection whereby the locking plate will be moved to the disengaging position upon preliminary oscillation of said coupler disc, and spring dcteni means engaging said locking plate to urge said locking plate into either of the positions aforementioned.

MORRIS FALK. 

